Police have accused 23-year-old Aaron Juan Saucedo of killing nine people in 12 shootings in 2015 and 2016.

He faces multiple charges of first-degree murder and aggravated assault.

Saucedo maintained his innocence in court.

The Arizona Republic reports that a Maricopa County judge had granted a prosecutor's motion to seal parts of the criminal complaint and indictment, citing an ongoing investigation.

The news coalition, including CBS 5 (KPHO-TV), ABC15 (KNXV-TV), 3 TV (KTVK), 12 News (KPNX-TV) and Telemundo of Arizona, contends that they have a legal right to the public records indicating probable cause.